Ratings & Reviews for GreenGuard R- 5 , 1-in x 2-ft x 2-ft Unfaced Foam Board Insulation
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this foam board for exceptional insulation performance, with many reporting it successfully prevented frozen pipes, sealed attic openings, and insulated tight spaces. Reviewers consistently highlight how easily it cuts with a razor knife and fits irregular areas without special tools. The product's versatility extends far beyond traditional insulation—customers use it for model-making, sound deadening, and craft projects. Most find it a reliable, cost-effective solution for small-scale DIY work. A few note minor edge imperfections during cutting, though overall satisfaction remains exceptionally high.
Customer review summary generated by AI, including incentivized reviews.Making spacers
Easy-to-use
Verified Purchaser
GreenGuard R- 5 , 1-in x 2-ft x 2-ft Unfaced Foam
Would RecommendI use this to cover over my dropdown attic stairs entry hole going into my attic. I use 3 of them covering the entire length of the opening to the attic for more insulation.
Verified Purchaser
Fool Proof
Would RecommendEasy to use, this helped me reduce the draft in and old fireplace. Easy to cut with a sharp blade
Verified Purchaser
Prep
Would RecommendPrep
Verified Purchaser
Insulation board, is insulation board
Works fine
Verified Purchaser
Easy to cut to desired length
Just enough for decent insulation
Verified Purchaser
Easy to cut and adhese on
Used this foam to insulated my attic door and worked great
Verified Purchaser
Comfortable size
Would RecommendThe size and thickness satisfied my needs for what I required.
Verified Purchaser
Low cost, better than the styrofoam alternative
Used to insulate a hole in the doggy door, easy to cut and trim to size, good insulation
Verified Purchaser
Great for DIY projects
Would RecommendGrabbed a few for insulating vents and doors for the winter. These tiles worked great for small spots like crawl space doors and venting. We had pioes freeze last year, this year with these pieces in place, we had no problems this time around went temps dipped below 10. would recommend.
Easy to work with
Would Not RecommendEasy to cut to size to use for filling in the ventholes in my crawlspace in order to keep the heat in and the cold out during our recent below freezing temperatures.
Verified Purchaser
Easy to cut
Would RecommendHalf sheet perfect for small jobs
Verified Purchaser
CNC Prototyping Gold, Too Expensive
Works great for CNC prototyping. Horrible price though, Lowes needs to work on that!
Verified Purchaser
Its always easy shopping at Lowes
Would RecommendProduct was as described
Verified Purchaser